Multiple inputs and higher compatibility: with Bluetooth 5.2/RCA/MM phono inputs, compatible with most audio devices such as turntables, phones, computers, tablets, TVs, CD players etc. Besides banana speaker outputs, a 3.5mm AUX output is added to connect another amplifier or active speaker/subwoofer to build 2.1 or multi-channel audio system. High-quality audio components: with TPA3255 amplifier chip adopted, max output power of each channel reaches 300W, can drive most home passive speakers and delivers exceptional sound quality with low distortion. The QCC304X Bluetooth chip, supporting SBC/APTX/APTX-LL/APTX-HD etc, ensures high-quality, low-latency wireless audio streaming with efficient power use and stable connectivity. 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Sign Up Now ! HIFI TPA3255 Digital Amplifier w/Bluetooth Stereo Audio Amp for Home Turntables Item description Features Multiple inputs and higher compatibility: with Bluetooth 5.2/RCA/MM phono inputs, compatible with most audio devices such as turntables, phones, computers, tablets, TVs, CD players etc. Besides banana speaker outputs, a 3.5mm AUX output is added to connect another amplifier or active speaker/subwoofer to build 2.1 or multi-channel audio system. High-quality audio components: with TPA3255 amplifier chip adopted, max output power of each channel reaches 300W, can drive most home passive speakers and delivers exceptional sound quality with low distortion. The QCC304X Bluetooth chip, supporting SBC/APTX/APTX-LL/APTX-HD etc, ensures high-quality, low-latency wireless audio streaming with efficient power use and stable connectivity. Unique and amazing combination: integrated ST-01 PLUS amplifier with VU meter into whole in such a mini size, brings a retro sense to balance the modern feel. The pointer dancing in the warm light, dynamically decorates the audio system and can serve as a visual aid for real-time audio adjustment. User-friendly design: enjoy tailored sound with adjustable bass and treble. ST-01 PLUS also supports to clear Bluetooth pairing records. The sensitivity of VU meter can be adjusted, ensuring better match with different input signals. With input selection and indicators, clearly shows the working status in real time. Attractive appearance: crafted with a sleek aluminum alloy shell, ST-01 PLUS exudes elegance and robustness. Its refined exterior not only enhances the visual appeal but also ensures lasting quality, reflecting the perfect union of form and function in high-fidelity audio design. Warm tips 1. Default 32V/5A power supply, can satisfy the needs of most home speakers. If you need higher power output, please prepare a high-quality and large power supply by yourself. 2. The 3.5mm AUX output and the speaker jacks output are controlled by the main volume and bass/treble synchronously. Parameters Audio inputs: Bluetooth 5.2/Stereo RCA/MM phono Audio outputs: banana speaker jacks/3.5mm AUX Max output power: 300W*2 (4Ω) Input sensitivity: Phono: 5mV RCA: 2V Bass&treble adjustment range: ±6dB THD+N: 0.02%@1KHz SNR: ≥107dB Frequency response: 20Hz-20KHz (±1dB) AUX rated output level: 2V Working voltage: DC 24-48V Dimensions(W*D*H): 115*100*60mm/4.53*3.94*2.36in Package dimensions(W*D*H): 295*205*90mm/11.61*8.07*3.54in Net weight: 673g/1.48lb Package weight: 1.40kg/3.09lb Power Output Table of ST-01 PLUS Power Supply Speaker Impedence Rated Output Power 32V/5A 4Ω 78W+78W 6Ω 71W+71W 8Ω 65W+65W 36V/6A 4Ω 107W+107W 6Ω 100W+100W 8Ω 94W+94W 48V/5A 4Ω 120W+120W 6Ω 110W+110W 8Ω 102W+102W 48V/10A 4Ω 250W+250W 6Ω 210W+210W 8Ω 185W+185W Packing list 1* ST-01 PLUS Amplifier 1* DC 32V/5A Power Adapter 1* Bluetooth Antenna Payment Fast Shipping Return Policy About us Contact us Payment Safe and secure payment by PayPal. Fast Shipping The items are located in US, and will be shipped within 1 working day, 2-6 working days to deliver. Return Policy Free Return Within 30 Days We provide free return with 30 days for all items you bought on eBay, full refund and return shipping will be provided. 1-year warranty is provided for all items(Excluding: 1. Man-made damage or misuse. 2. Audio accessories and consumables such as vacuum tubes). If you are satisfied with our products and service please leave a 5-star . Feedback is very important to us just like our lives, please DO contact us before you leave a neutral or negative feedback, we will provide better solutions until you are satisfied. About us Douk Audio / Nobsound Studio was founded in 2013 in Shenzhen CHINA, we own several brands including Douk Audio / Nobsound / Little Bear etc. As a professional audio company, we are dedicated to design and produce the best products at the lowest prices to make HiFi affordable. We will spare no efforts to bring great products and service for customers and extremely to improve our customers listening experience. Contact us Please don't hesitate to contact us if you have any questions or comments about our items. And our working time is from Monday to Friday between 9:00 am to 06:00 pm(Beijing Time), which means we can keep on-line at: Working time Beijing(CN)Monday-Friday09:00 AM - 18:00 AMNew York(US)Sunday to Thursday08:00 PM - 05:00 AMLondon(UK)Monday-Friday01:00 AM - 10:00 AMParis(FR)Monday-Friday02:00 AM - 11:00 AM During holiday, please allow us to response you early next week. Please don't leave any negative / neutral feedback or make dispute/claim on our non-working time, thank you for your understanding and cooperation. Home Feedback Save Seller New Listed Ending Soon Contact us